@zenadsl6186: "<url>
It's a sniper rifle version of a railgun. Fires at 6,000 m/s, range of a 
mile. Looks a bit like snake oil, or steve36@example.com. However...
A suitable projectile would probably be about 1 gram of high tungsten 
alloy, about 38 mm long and 0.95 mm diameter. My question is, what 
happens when it hits a human being?
Travelling at 6 km/s, the mechanical strength of the projectile would be 
nearly irrelevant, and it becomes a hydrodynamics question - which is 
why I ask here.
I guess it would splash and cause a crater, without much penetration, 
but I don't know much about hydrodynamics.
 Peter Fairbrother"
    @predator: ""Peter Fairbrother" <email_address> wrote in message news:
<quote>
That is Vaporware. The soldier is holding an XM8 prototype rifle that the US 
Army was developing. They turned it down.
<url>
Dan. "
    @bevnsag: "<quote>
I didn't see anything in the article about projectile size/shape, but
for a moment, let's use yours. I'd suspect the dart would not collapse
on initial contact, but crater/tunnel into the target for a distance,
the contact tip splashing away with the target material, using itself up
as it goes. Pretty nasty. 
On the other hand, since they don't describe the projectile, there is
nothing to go on for how it might be stabilized. I'm wondering if it
might be a shallow angle cone rather than a long thin dart? 
And it might well still be vaporware, and the power source didn't seem
to be well described. 
Lastly, the whole technology has the problem of being a detectable EM
source when fired. Initially, or against opponents with limited
resource, detection and counter-fire would not be an issue, but in time,
against more able foes, the weapon may become a liability."
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